Now then, Pokemaster doesn't want pre-evo Pokemon movesets. However, movesets of Slaking are mainly focused at overcoming Truant. Vigoroth, however, doesn't have that ability. Pokemaster, if this is not okay with you, can you hide it please? My Vigoroth knows:

5 Answers

He doesn't get STAB ( Yay, lets cover 0 types for super effective coverage! )
But he gets amazing coverage.
Bolt-Beam combo starts him out with Ice Punch and Thunder Punch, just owning stuff.
Ghost-Fighting coverage is noted for awesomeness, but Dark only covers one less type ( Or pokemon? ) so Sucker Punch is taken for it's 10 more base power, and priority.
Life orb + Adamant + Amazing chance for a super effective blow = Domination.

Pinch-berry+Endure

This is one of the few Pokemon that learns Endure, Reversal, and Flail, put all that together and you get a pretty heavy hitter. Endure helps you to activate the Salac-berry to give you 413 speed! Or you can go Hasty for 306 Speed and give him the Liechi-berry to give him 383 Attack! So you get to choose between average Attack and Super High Speed or High Attack and Good Speed. Reversal is great coverage and has 200 base power at 4% - HP! Flail is STAB and also has 200 base power at 4% - HP! Now you get to choose your extra coverage move: Earthquake is strong and reliable but on this set you need to beware of flying types with high defense so Ice/Thunder-punch are good, Fire-punch would be there if you are afraid of Steel types without Ground or Fighting weakness. Enjoy your Vigoroth :)

This thing is seriously strong, it can almost 3HKO even Rock-types. Eviolite + Spd investiment allows he to tank even strong attacks. The speed investiment are needed, so he can outspeed some threats and anti-lead ( doesn't let hazards come to your side ), don't is set-up bait and don't let other ( besides prankster ) status you. Bulk Up Boosts your defense and atack to amazing levels, witch just let you sweep. Slack off for healing. Pair this thing with a fighting type if you don't think you can handle Rock- and Steel-types. And a Dark / Ghost support is needed, so he can sweep. If you want to outspeed more than he normally can, just run it on a Sticky Web team.